Hardware testing utilities are software tools designed to evaluate and diagnose the performance and functionality of computer hardware components. These utilities can test various parts, such as the CPU, RAM, hard drives, and graphics cards, ensuring they operate correctly and efficiently. By running these tests, users can identify potential issues, such as overheating or hardware failures, before they lead to significant problems. Many hardware testing utilities provide detailed reports, helping users understand the health of their systems and make informed decisions about upgrades or repairs.